Finding the Fourth Proportional to 1,798,766.19, 2,483,378.60 and 1,120,621.23
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Solution
The fourth proportional to 1,798,766.19, 2,483,378.60 and 1,120,621.23 is: 1,547,130.91
Step by Step Solution
- Step 1: Write the proportion equation
1,798,766.19 : 2,483,378.60 = 1,120,621.23 : x - Step 2: Convert to fraction form
1,798,766.19/2,483,378.60 = 1,120,621.23/x - Step 3: Cross multiply
1,798,766.19x = 2,483,378.60 × 1,120,621.23 - Step 4: Simplify right side
1,798,766.19x = 2,782,926,775,684.57 - Step 5: Solve for x
x = 2,782,926,775,684.57/1,798,766.19 - Step 6: Final answer
x = 1,547,130.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.